Syslog Message Limits; How To Configure System Message Logs; Setting The Message Display Destination Device - Cisco Catalyst 9400 System Management Configuration Manual

Configuring System Message Logs
Feature
Console severity
Logging file configuration
Logging buffer size
Logging history size
Time stamps
Synchronous logging
Logging server
Syslog server IP address
Server facility
Server severity

Syslog Message Limits

If you enabled syslog message traps to be sent to an SNMP network management station by using the
snmp-server enable trap global configuration command, you can change the level of messages sent and
stored in the switch history table. You also can change the number of messages that are stored in the history
table.
Messages are stored in the history table because SNMP traps are not guaranteed to reach their destination. By
default, one message of the level warning and numerically lower levels are stored in the history table even
if syslog traps are not enabled.
When the history table is full (it contains the maximum number of message entries specified with the logging
history size global configuration command), the oldest message entry is deleted from the table to allow the
new message entry to be stored.
The history table lists the level keywords and severity level. For SNMP usage, the severity level values increase
by 1. For example, emergencies equal 1, not 0, and critical equals 3, not 2.

How to Configure System Message Logs

Setting the Message Display Destination Device

If message logging is enabled, you can send messages to specific locations in addition to the console.
This task is optional.
Default Setting
Debugging.
No filename
specified.
4096 bytes.
1 message.
Disabled.
Disabled.
Disabled.
None configured.
Local7
Informational.
System Management Configuration Guide, Cisco IOS XE Bengaluru 17.4.x (Catalyst 9400 Switches)
Syslog Message Limits
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